Struct AbortOnDrop

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pub struct AbortOnDrop(pub &'static str);
Expand description

Zero-sized struct that calls std::process::abort() if dropped

This is useful to make code exception safe. If there is a region that must not panic for safety reasons, you can use this to prevent further unwinding, at least.

Before aborting, the provided string is printed. If the guarded code in the example panics, FATAL: Foo panicked. Aborting. will be printed to stderr.

§Example

let panic_guard = AbortOnDrop("Foo panicked.");
// ... code that might panic ...
panic_guard.defuse();

Tuple Fields§

§0: &'static str

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impl AbortOnDrop

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pub fn defuse(self)

Consume self without aborting the process.

Equivalent to std::mem::forget(self).

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impl Drop for AbortOnDrop

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fn drop(&mut self)

Executes the destructor for this type. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.